Phys. Rev. D 42, 2678–2682 (1990)Scattering in unbroken and broken phases of (2 + 1)-dimensional gravityReceived 22 May 1990; published in the issue dated 15 October 1990 Two-particle gravitational scattering is compared in the Chern-Simons and standard perturbative approaches. In the limit where one particle's energy dominates, the cross sections agree to order M3; in general they disagree. This is attributed to the nonexistence of quantum-mechanical fluctuations in the topological theory. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.42.2678
DOI:
10.1103/PhysRevD.42.2678
PACS:
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